Stovepipe-elbow.



W. HOWD.

STOVBPIPE ELBOW.

APPLICATION FILED FEB.28,1914

IJQLZSS; Y Patented June 23, 1914.

Inventor 1 027105 Attorney llldlT'ElD l liitjlla \VILLIAM HOWE), OF ST. 16513, MISSOURI.

STOVEPIPE-ELBOVJ.

To all who/1t it 11mg, concern Be it known that I, WILLIAM H'owo, a citizen of the United States, and a' resident of St. Louis and State of Missouri, have made and invented certain new and useful Improvements in Stovepipe- Elbows, of which the following is a specification.

My invention relates to a new and useful improvement in stove-pipeelbows, and more particularly to an elbow so constructed that .the connecting Stovepipe may be easily cleaned without necessitating the removal of the elbow.

An object is to provide an elbow so arranged that the cleaning or scraping implement may be Kept within the elbow and only a portion of the handle protrude therefrom, and atthe same time the scraping implement in such a position that'the draft will be in no way allected.

Still another object is to provide an elbow so constructed that the connecting pipe may be easily cleaned without necessitating the renmval of the elbow, and at the same time obviate all. danger of soottlying into the face of the operator or out into the room. Heretotore as far I am aware some stovepipe elbows have been constructed with a door sageway in the center of the elhow, but it is necessary to keep this door open while the operator is cleaning orscrap ing the sto'vepipe, and as the door' over the opening has to be large enough for the insertion of the scraping implement the soot or dust or products of combustion are aptto fly into the room, especially if the scraping action if at all violent. In this form of construction also the elbow might only be cleaned when there was no fire in the stove as the draft would be seriously affected and the smoke or gases would tend to be d'scharged into the room. lVith the. presentform of elbow herein shown and to be hereinafter fully described, the elbowor pipe may readily cleaned regardless of whether there is a fire in the stove below, and the danger of soot or products of combustion or gases entering the room is obviated; and the scraper or cleaning implement may be left in the elbow' but in no way interfering or affecting the draft l'l ith these and other objects in view my invention consists in certain new and novel features of construction and combination of parts as will be hereinafter fully described anu pointed out in. the clanns.

Specification of Letters Patent.

Patented June 23, 12914:.

Application filed February 28, 1914. Serial No. 821,631.

In the drawings Figure l is a YlQ-W in elevation of my improved elbow and a portion of a pipe shown in section. Fig. is a perspective view of a portion of my im. proved elbow showing the door in an open position. Fig. 3 is asectional view of my improved elbow showing the scraper in its outward position and Fig. 4 is a perspective view of the scraper.

Referring now to the drawings, an elbow 1, is shown having on its outer surface an aperture 2, the game being semicircular in outline, and hinged at one side of said aperture is a door 3 ofthe same general outline it of course being somewhat larger than said aperture, so that said aperture will be entirely closed when the door is in its closed position. In this door 3 is forn'ied a small opening which opening formed by striking inwardly a portion of the metal of the door to form a lip or rest 5. In a position slightly above said opening a; is pivoted a small cover 6 that may be swung over said opening atit for any reason the scraping implement to be hereinafter described is removed from its position within said elbow, Also pivoted to the door 3 and opposite the hinge is a retaining or latch memoer l that is adapted to engage with the stud 8 secured to the elbow l. In Fig". l is clearly shown a scraper 9 provided with a handle 10, and the blade of this scraper i preferably semi-circular in shape and pron--ded with the flange 11 so that it will slide easily on the inner surface of the elbow and the connecting pipe, duringthe cleaning operation. The handle 10 of the scraper may be of any desirable length and the outer end thereof is preferably serewthreaded as shown at 12, so that the gripping member or handle 13 may be secured thereto. it will be understood that by constructing the scraper in this manner that if for any reason an extra long handle was neededan extension might be provided that would have a socket on one end to engage the screw threads 12-, and on its other end be provided with screw threads that would lit into the socket oi the gripping member 13.

To assemble the various parts after the elbow is set in its fixed position the door 3 is opened, the gripping member 13 is re moved from the handle 10 and the scraping member inserted through the opening or aperture 2 of the elbow l. The handleld would then. be inserted throu h the o eni'net i b or is preferably 4 and the gripping member 13 then secured to the handle 10. The door 3 is then closed and the retaining or latch member 7 passed over the stud 8. The scraping member 9 is tlien pulled outwardly as clearly show: in Fig. 3, and slightly tilted so that the upper edge of the scraper 9 rests against the inner surface of the elbow l, the handle 10 resting on the lip o and, against the upper edge of the opening 4. 'By thus providing the three points of Contact the scraper is held securely .in position, until moved by the operator, and at the same time in such a position as it in no way affects the draft of the stove.

From. the foregoing it will be seen.that the scraper is always in its proper place; is readily accessible and at the same time in no way interferes with the draft. It will also be seen that the main door 3 does nothave to be opened except for the insertion of the scraper, and does not have to be opened thereafter except that if for any reason it should be desired to insert a new scraper. It will also be apparent that by so constructing my improved elbow, the door 3 may be always kept in a el'bsed position and all danger from gases entering the room from the stove below orthe soot dislodged by the scraper during the process of cleaning absolutely prevented from hfl ying into-the face of the operator or in any way entering the room. I r

Having thus described my inventioluwhat I claim as new and desire to secure by Letters Patent, is:

1. A stove-pipe elbow provided with an opening in the outer surfacethereof, a door hinged to one side of said opening and adapted to close the same, said door provided with a relatively small opening, and

a lip formed at the lower edge-of said opening and fastening means for, said door to hold the same in its closed position.

2.-A stove-pipe elbow provided with an opening in the outer portion thereof, a door hinged at one side of said opening and adapted to close the same, said door provided with a relatively small opening, a support located just below said opening; a scraper adapted to enter the opening in said stove-pipe elbow, the handle of which is adapted .to pass through the opening in said door and be held; by said support, and

pass through the opening in said stove-pipe elbow, the handle of which is adapted to pass through the openin of the opening in said door to thereby hold said scraper in contact with the upper surface of said stove-pipe elbow.

Signed at St. Louis and State of Missouri this 19th day of February, A. D. 1914.

WILLIAM HOWD.

Witnesses:

WILLARD H. GUEST, ADoLrH DAoosTA.

in said door and. rests on said lip and agalnst the upper edge- 

